They tried to keep their bloodline strong so they resulted to incest, which backfired and made them weak.
They touched it briefly in a previous chapter.
The son impregnated the mother
Eww
ohhh okk
ohhh
They really are just siblings. The older brother (family's head) is infertile so for some reason, they are pretending to be father & son.
He’s most likely infertile due to past incest and stuff off the sort
I misread your comment. I thought you said he was infertile for some reason so that’s why I explained. My bad.
can anyone explain how his father is also his brother ??